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Dreyfus S., Law A. — The art and theory of dynamic programming
Dreyfus S., Law A. — The art and theory of dynamic programming

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Название: The art and theory of dynamic programming

Авторы: Dreyfus S., Law A.

Аннотация:

For the programming paradigm, see Dynamic programming language.

In mathematics and computer science, dynamic programming is a method for solving complex problems by breaking them down into simpler subproblems. It is applicable to problems exhibiting the properties of overlapping subproblems which are only slightly smaller[1] and optimal substructure (described below). When applicable, the method takes far less time than naive methods.

The key idea behind dynamic programming is quite simple. In general, to solve a given problem, we need to solve different parts of the problem (subproblems), then combine the solutions of the subproblems to reach an overall solution. Often, many of these subproblems are really the same. The dynamic programming approach seeks to solve each subproblem only once, thus reducing the number of computations. This is especially useful when the number of repeating subproblems is exponentially large.

Top-down dynamic programming simply means storing the results of certain calculations, which are later used again since the completed calculation is a sub-problem of a larger calculation. Bottom-up dynamic programming involves formulating a complex calculation as a recursive series of simpler calculations.


Язык: en

Рубрика: Computer science/

Статус предметного указателя: Неизвестно

ed2k: ed2k stats

Год издания: 1977

Количество страниц: 301

Добавлена в каталог: 14.02.2014

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